Attempt to solve the problem faced by Window user that cannot override the COMPOSER_MIRROR_PATH_REPOS value from command line. Add this step to the build step in vapor and remove the override code php artisan build:composer-mirror.

This will allow different environments still able to have COMPOSER_MIRROR_PATH_REPOS override to true only at deploy build step.

The update will look like this Before

build:
    - 'COMPOSER_MIRROR_PATH_REPOS=1 composer install --no-dev'

After

build:
    - 'php artisan build:composer-mirror'
    - 'composer install --no-dev'

To do

Installation command